Faculty

Brandon DL Marshall, PhD

Brandon DL Marshall, PhD

Professor of Epidemiology & Founding Director of the People, Place & Health Collective, Vice Chair of the Department of Epidemiology and Director of the Center for Epidemiologic Research

My name is Brandon Marshall (he/him), I am an Associate Professor of Epidemiology at the Brown University School of Public Health and the Founding Director of the People, Place & Health Collective. I received a PhD in epidemiology from the University of British Columbia’s School of Population and Public Health. In 2011, I completed postdoctoral training at the Columbia University Mailman School of Public Health. My research focuses on substance use epidemiology, infectious diseases, and the social, environmental, and structural determinants of health of urban populations.

Alexandra (Alex) Collins, PhD

Alexandra (Alex) Collins, PhD

Assistant Professor of Epidemiology

William Goedel, PhD

William Goedel, PhD

Assistant Professor (Research) of Epidemiology

Francesca Beaudoin, MD, PhD

Francesca Beaudoin, MD, PhD

Academic Dean at the School of Public Health. PPHC Co-director. Professor of Epidemiology and Emergency Medicine.

Francesca L. Beaudoin (she/her) MD, MS, PhD is an Associate Professor and Chair of the Department of Epidemiology and an Associate Professor of Emergency Medicine. Dr. Beaudoin is a board-certified emergency physician and clinical epidemiologist with expertise in opioid use disorders and pain.  Her work primarily focuses on three substantive areas that intersect with different aspects of the opioid epidemic: (1) comparative effectiveness of opioids and analgesic alternatives, (2) pharmacologic and non-pharmacologic interventions for opioid use disorders (OUD), and (3) study of posttraumatic neuropsychiatric sequelae (trauma and its consequences being a major risk factor for substance use)

Alexandria (Alex) Macmadu, PhD

Alexandria (Alex) Macmadu, PhD

Assistant Professor of Epidemiology

My name is Alex Macmadu (she/her), and I am an Assistant Professor in the Department of Epidemiology at the Brown University School of Public Health. My research is focused on overdose prevention, harm reduction, and network-based approaches to mitigate drug-related harms. Much of my work also seeks to seeks to advance justice and health equity in marginalized groups, including people who use drugs, rural and BIPOC communities, and folks affected by the criminal legal system. Feel free to shoot me an email at: alexandria_macmadu@brown.edu.

Jesse Yedinak, MPA

Jesse Yedinak, MPA

Assistant Dean of Education, Assistant Professor of the Practice of Epidemiology

My name is Jesse Yedinak (she/her/hers) and I am an Assistant Professor in the Department of Epidemiology at the School of Public Health. I am also the Assistant Dean of Education at the School of Public Health.

My research is focused on applied epidemiology, using a community-engaged approach to research and policy impact by working collaboratively with community-based and state agency partners. As part of that process, I study implementation science, health & data literacy, and plain language communication.

Staff

Abdullah Shihipar

Abdullah Shihipar

Research Associate - Narrative Projects Lead

My name is Abdullah Shihipar (he/him), and I am a Research Associate who runs the Narrative Projects & Policy Impact Initiatives pod here at PPHC. In my role, I help researchers and students take scientific research and translate them to mediums the public can understand; from op-eds and commentaries, to media trainings to plain language communication to public facing informational campaigns. I also handle much of the team’s graphics, branding and social media strategy. I am passionate about public health, overdose prevention, harm reduction and ending the drug war and try to channel these issues in the work I do here everyday. If you have any questions or just want to say hello, you can reach me at: abdullah_shihipar@brown.edu!

Alivia Saunders

Alivia Saunders

Research Assistant

My name is Alivia Saunders and I am a Research Assistant with PPHC in the Dept. of Epidemiology at Brown University’s School of Public Health. I am a proud, lifelong Rhode Islander, and I graduated with my B.S. from the University of Maryland in 2023 having studied public health and Spanish. I’m passionate about sexual and reproductive health, breaking the stigma around substance use, and incarcerated people’s rights. I believe that harm reduction is the future, and that it’s essential to use it as the framework in all areas of public health. If you’d like to get in touch, shoot me an email anytime at alivia_saunders@brown.edu!

Andy Gould

Andy Gould

Research Assistant

Carolyn Park

Carolyn Park

Data Analyst

My name is Carolyn Park (she/her), and I am a Data Analyst at the PPHC in the Department of Epidemiology at Brown University School of Public Health. As part of the Data Security, Transformation, and Visualization Pod, I am primarily responsible for project and data management, various data-related services, and analytical support. I completed my MPH in infectious disease epidemiology at Yale School of Public Health.

Claire Pratty

Claire Pratty

Data Analyst

Julia Trombley

Julia Trombley

Research Assistant

I am a Research Assistant in the Department of Epidemiology at the Brown University School of Public Health. I am a member of the Community Engaged Research Pod and the Clinical Research Pod. I work on the RAPIDS study, which seeks to prevent overdose deaths in Rhode Island, and the MPS study, supporting opioid use treatment and recovery through a mobile app. I studied philosophy and biology at the University of Guelph. Feel free to reach out at: julia_trombley@brown.edu

Maxwell Krieger

Maxwell Krieger

Project Director

Marisela Betances

Marisela Betances

Research Assistant

Sam Bessey

Sam Bessey

Lead Software Engineer

I’m Sam, and I’m the lead software engineer here at PPHC. I manage our lab’s epidemiological modeling projects and develop our web-tools for various projects. My position also includes guiding PPHC members through coding best practices, scientific transparency, and the NIH Data Management & Sharing Policy. I lead our initiatives toward open science and open-source software, putting my values of collaboration into practice. Check out my GitHub to see my open-source projects.​

Seashore Li, MD, PhD

Seashore Li, MD, PhD

Senior Biostatistician

My name is Seashore (Yu) Li (they/them) and I am a Senior Biostatistician who serves as statistical support in data pod here at PPHC. In my role, I help researchers and students with statistics analysis in both designing stage of the study and manuscript writing. I’m familiar with a series of software (SPSS, SAS, Stata, R, python etc) which easily communicate with researchers and students who use any of the specific software. I have clinic medicine and epidemiology training background and have growing interest in data science. If you have any questions or just want to say hello, you can reach me at: yu_li1@brown.edu!

 
Tayla Giguere

Tayla Giguere

Research Coordinator

My name is Tayla Giguere, I am a Research Coordinator with PPHC at the Brown University School of Public Health. My work is primarily on the Mobile Peer Support study, along with a collection of other projects in the department. I received my Masters of Public Health from University of New England. I am interested in infectious disease epidemiology, harm reduction and all things Public Health to improve the quality of life for others. Feel free to reach out to me at: tayla_giguere@brown.edu

Alyssa Peachey

Alyssa Peachey

Project Manager

Alyssa Peachey, MHA is a project manager in the People, Place and Health Collective at Brown University. She currently manages clinical research trials for adults who are receiving treatment or recovery support for opioid use disorder. She is passionate about collaborating with other research teams to prevent overdose and incorporate harm reduction practices within the community. She has experience working in emergency medicine research as well as recruiting participants via social media advertising on a national level.

Cathy Lenox

Cathy Lenox

Research Assistant

Hello! My name is Cathy Lenox (she/her) and I am a Research Assistant here at PPHC in the Department of Epidemiology at Brown University School of Public Health. My work is primarily on studies focusing on opioid overdose prevention (RAPIDS) or digital peer support for those in treatment or recovery from opioid use disorder (MPS). This work focuses on harm reduction and motivational interviewing. If you want to say hi or talk about my work, you can reach me out: cathy_lenox@brown.edu

Claire Macon

Claire Macon

Research Assistant

My name is Claire Macon (she/her) and I am a Research Assistant at PPHC working primarily on the testRI study. My work at PPHC builds off of previous direct service and organizing work related to houselessness, drug users rights and access, and sex workers rights. I am interested in research that focuses on community centered harm reduction strategies and understanding labor and survival amongst criminalized populations. Feel free to reach me directly at claire_macon@brown.edu!

Jackie Goldman

Jackie Goldman

Project Director

My name is Jacqueline Goldman (they/them), and I am a Project Director who runs the Community Engaged Research work here at PPHC. In my role, I manage a number of different studies that are all rooted in community research methods. The studies work directly with people who use drugs as well as the organizations that support them. I am passionate about using research to create real-world change. I believe that our policy and practice needs to center harm reduction and the voices of people with lived experience. If you have any questions or just want to say hello, you can reach me at: jacqueline_goldman1@brown.edu!

Erik Wills

Erik Wills

Human Research Specialist

My name is Erik Wills (he/him), and I am a Human Research Specialist at the PPHC in the Department of Epidemiology at Brown University. I received my Masters in Public Health in 2019 from the University of Massachusetts Amherst. In my role at PPHC I assist in the development and tracking of Institutional Review Board (IRB) submissions, in addition to serving as a liaison between study investigators, sponsors, and the IRB office. I am passionate about clinical research and discovering new organization tactics. Outside of work I am a skier and pug owner. Feel free to reach out to me at erik_wills@brown.edu with any questions.

Kelsey Armeni

Kelsey Armeni

Research Assistant

My name is Kelsey Armeni (she/her) and I am a Research Assistant with PPHC. I help with data collection in the field on projects within the Community-engaged Research Pod and Clinical Research Pod. I am passionate about applied research using ethnographic and qualitative methods to address environmental, social, and structural determinants of health. Feel free to reach out at kelsey_armeni@brown.edu.

Laura Chambers

Laura Chambers

Assistant Professor of the Practice of Epidemiology and Lead Research Scientist

My name is Laura Chambers (she/her), and I am an epidemiologist who is passionate about working with public health departments and community-based organizations to improve population health and health equity. My work involves both research and applied epidemiology spanning the fields of substance use, mental health, COVID-19, and sexual health. I completed my MPH and PhD in Epidemiology at the University of Washington in Seattle.

Michael Tan

Michael Tan

Project Coordinator

My name is Michael Tan (he/him), and I work as a Project Coordinator working on community engaged research. I work mainly on data collection in the field at offsite locations throughout Rhode Island with nonprofit community organizations on project RAPIDS. I also help with other various projects, including doing data collection with qualitative research. I received a B.A. in Public Health at Brown University Spring 2021. If you have any questions or just want to say hello, you can reach me at: michael_tan1@brown.edu

Sari Greene

Sari Greene

Research Assistant

Todd Hampson

Todd Hampson

Web Developer

Doctoral Students

Alexandra Skinner

Alexandra Skinner

Doctoral student

Alexandra Skinner, MPH is a first-year doctoral student in the Department of Epidemiology. Her research interests apply epidemiologic methods to evaluate the ways in which stigmatizing, punitive, and discriminatory policies shape overdose and infectious disease. Alex’s work supports collaborations between the People, Place & Health Collective and Rhode Island Department of Health to target overdose prevention efforts in the state to neighborhoods predicted to be at highest risk of overdose death. Before coming to Brown, Alex worked as a research fellow at Boston University School of Public Health, where her work focused on policy drivers of population health and health equity in the context of the COVID-19 pandemic and in terms of access to HIV care for adolescents. She received a Master of Public Health in Epidemiology & Biostatistics and a Bachelor of Science in Health Science, both from Boston University.

Leah Shaw

Leah Shaw

Doctoral Student

My name is Leah Shaw (she/her), and I am a first-year doctoral student in the Department of Epidemiology. I am working on supporting the efforts of the PROFOUND study, which aims to optimize Narcan distribution strategies in Massachusetts, Rhode Island, and New York. I am also supporting research related to the Overdose Prevention Center here in Providence. Before starting at Brown, I worked at Boston Health Care for the Homeless Program on their Hepatitis C and HIV teams leading research, reporting, and quality improvement. I have also worked in mobile health, syringe exchange, and occupational health efforts in the U.S. and in Latin America. I received my Master of Public Health in Epidemiology & Biostatistics and Bachelor of Arts in International Relations & Community Health from Tufts University. Feel free to reach out! My email is leah_shaw@brown.edu.

Fiona Bhondoekhan

Fiona Bhondoekhan

Doctoral student

Fiona Bhondoekhan is a second-year doctoral student in the Department of Epidemiology involved with chronic pain and opioid addiction research aimed to improve treatment access and health outcomes of people who use drugs. She works with the Dr. Brandon Marshall and the People, Place & Health Collective (PPHC) at Brown University evaluating behavioral interventions and opioid prescription trends among high-risk opioid-using populations in Rhode Island. Her research interests are also in pharmacoepidemiology and evaluating policy effects for drug improvement programs using claims data and epidemiologic methods such as causal frameworks evaluating marginal structural models, instrumental variables, propensity scores, and target trial emulations. Before coming to Brown University, she worked as biostatistician for the MACS/WIHS Combined Cohort Study (i.e., the Multicenter AIDS Cohort Study and Women’s Interagency HIV Study) where her work focused on chronic age-related outcomes disproportionally affecting people living with HIV including cardiovascular disease, inflammation, frailty, and neurocognition. Fiona obtained her master’s degree in Epidemiology from Johns Hopkins University in 2018 and her bachelor’s degree in Microbiology, Immunology, and Molecular Genetics from the University of California, Los Angeles in 2013.

Shayla Nolen

Shayla Nolen

Doctoral Candidate

Shayla Nolen is a fourth-year doctoral candidate interested in using mathematical modeling and spatial methods to estimate the impact of structural and social factors related to racism on HIV and overdose prevention. Her dissertation will specifically investigate the effect of gentrification on HIV transmission among African American/Black adults in Philadelphia using a spatially dynamic agent-based model. Prior to Brown, she worked at Boston University Medical Center, conducting cost-effectiveness research to study HCV and overdose prevention among people who inject drugs. She holds a BA in Mathematics from Fisk University and an MPH with a concentration in Epidemiology from the Rollins School of Public Health at Emory University.

Masters and Undergraduate Students

Nazifa Ibrahim

Nazifa Ibrahim

MPH Student

Nazifa Ibrahim (she/her) is a first-year MPH student in the Department of Epidemiology whose research interests include psychiatric epidemiology, pharmacoepidemiology, and comparative effectiveness research for treatment of substance use disorders in adolescent and young adult populations. Her work at the PPHC primarily surrounds evaluation of emergency department-related outcomes for patients with opioid use disorder (OUD), as well as the MPS study, which aims to test the effectiveness of a peer-driven mobile app as a complement to existing OUD treatment and recovery support. Prior to joining the Brown School of Public Health, Nazifa was a senior consultant in health economics and outcomes research focusing on conception and evaluation of clinical outcome assessments for patient-focused drug development. She holds a B.S. in Public Health Sciences from the University of Massachusetts Amherst.


Alumni